Facile fabrication of chitosan/hyaluronic acid hydrogel-based wound closure material Co-loaded with gold nanoparticles and fibroblast growth factor to improve anti-microbial and healing efficiency in diabetic wound healing and nursing care

Generally, diabetic wounds heal very slowly and inefficiently with an increasing risk of infections. Recent nanotechnology and biomaterial advances elaborate developed multi-functional hydrogels and nanoparticles offer promising solutions to accelerate wound healing for diabetic patients. This research work demonstrates to use of solvent diffusion method to develop hydrogel nanocomposites composed of chitosan (CS), hyaluronic acid (HA), gold (Au), and fibroblast growth factors (FGF). The biological analysis of nanocomposites exhibited enhanced wound healing efficiency by incorporating bioactive molecules like FGF and bioactive Au nanoparticles. In vitro, cell compatibility analysis (MTT assay) of prepared hydrogel nanocomposites was studied on fibroblast cell lines NIH-3T3-L1 and L929 and exhibited greater cell survival ability (>90 %), cell proliferation and migration ability, which demonstrated the suitability of nanocomposite for wound healing treatment. In vitro, anti-bacterial analyses established that FGFAu@CS/HA has strong antibacterial effectiveness against gram-positive and gram-negative pathogens. The observation of the present research revealed that prepared FGF-Au@CS/HA hydrogel composites could be a suitable biomaterial for diabetic wound care, potentially improving its antibacterial and healing efficacies.